Volvox
Modelling the helix
A cut-out 3D model of DNA
Summary
This three-dimensional model of B-DNA is assembled from parts cut out from card.
Educational objectives
Students will learn about the structure of DNA.
Pre-knowledge and skills required by students
Knowledge of the basic structure of DNA would be useful e.g., names of bases and base-pairing mechanism; sugar-phosphate backbone.
Time taken in lesson
90 minutes
Preparation time
10 minutes
Specialist equipment and materials required
DNA model templates printed on card, preferably in colour; drinking straws, thread or thin string.
Context where originally used
A similar model was originally published in 1958; this model has been used with 11-19 year-old students in the UK and elsewhere since 2001.
Additional information
This model has been published in Bioscience Explained and the School Science Review.
Author
Dean Madden
Author's address
NCBE
University of Reading
2 Earley Gate
Reading
RG6 6AU
Copyright HOLDER(s)
Copyright © Dean Madden, 2008
COPYRIGHT TERMS
 Attribution required
 No derivative works
 No endorsement
 Share and share alike
 No commercial use without permission
 No practical kits without permission.
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